FIELD: oil and gas industry.
SUBSTANCE: invention relates to oil industry and can be used for repair-isolation operations in oil and gas wells. Method of making plugging material for repair-isolation operations in oil and gas wells involves layering phenol-formaldehyde resin by holding for at least a day until liquid layer emerges on its surface with subsequent separation of lower settled and upper layers. After that, in part of upper layer, containing 5-10 % of volume of said resin, is dissolved 0.1-1 % unslaked lime of weight of said resin. Method then includes mixing dissolved part of upper layer with remaining part of upper layer and lower settled layer, preliminary dissolving of epoxycarbazolyl propane in amount of 10-20 % of weight of initial phenol-formaldehyde resin, with subsequent addition of a curing agent.
EFFECT: technical result is increase of durability and reliability of layer of plugging material, formed after hardening on surface of walls of treated well.
3 cl, 5 ex
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